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圓內接四邊形任務一: 提示二
Author:
Stanley Mak
GeoGebra
New Resources
四邊形的特性
算柱 (兩位數)
拼砌四邊形
異分母分數減法
兩組對邊相等和有直角的四邊形
Discover Resources
百分數（小學）：折扣 / 賺賠（HTML5 版）
橢圓
整數指數與有理指數練習
周界
藝術著色的副本
Discover Topics
Vectors 3D (Three-Dimensional)
Pyramid
Pythagoras or Pythagorean Theorem
Parallelogram
Logic